Linear motion guide unit manufactured from a resin

Details Linear motion guide unit manufactured from a resin Linear motion guide unit manufactured from a resin

1991-01-30

1992-04-21

Footland, Lenard A.

Bearings

Linear bearing

Recirculating

F16C 2906

Patent

active

051062062

ABSTRACT:
A linear motion guide unit includes a rail, slider slidably mounted on the rail and a plurality of rolling members interposed between the rail and the slider to provide a rolling contact between the rail and the slider. At least one of these components comprising the linear motion guide unit is comprised of a resin material, in particular engineering plastic material. For example, the rail is comprised of an engineering plastic material and has a pair of opposite side surfaces on each of which a guide groove is formed. A plurality of vertical grooves are formed on the surface spaced apart from each other along the guide groove. The provision of such vertical grooves allow to absorb any errors in the mounting accuracy so that the rail can be manufactured from a resin material, which in turn contributes to provide an extremely light-weight linear motion guide unit.

REFERENCES:
patent: 4717264 (1988-01-01), Walter et al.
patent: 4806022 (1989-02-01), Takahiro
patent: 4886374 (1989-12-01), Osawa
patent: 4989996 (1991-02-01), Binder et al.

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